Rectifier and Regulator Assembly – Fits Suzuki Outboard Motors (Replaces 32800-99J00)

$215.78 $345.00

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Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This is a Rectifier and Regulator Assembly for various 4-Stroke Suzuki outboard motors. It is a critical component of the electrical system, responsible for converting AC voltage to DC and regulating the output to charge the battery and power accessories.

This assembly is a direct replacement for Suzuki part number 32800-99J00.

Easy plug-and-play installation with an OEM-style connector.
Designed to improve heat dissipation and charging capabilities.
Reduces electrical load on the engine for better efficiency.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number	Notes
Suzuki	32800-99J00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Suzuki	Outboard		4-Stroke		32800-99J00	Backordered at multiple retailers

Technical Specs

Product Type: Voltage Rectifier and Regulator Assembly
Installation: Direct replacement, plug and play
Connection: OEM-style electrical connector
Housing Material: Metal/Plastic
Housing Color: Black
Dimensions: 11.5" L x 9.5" W x 10.0" H
Fitting Type: OEM direct replacement
Technical Attributes: Improves heat sink and charging capabilities; reduces engine load

What’s in the Box

1 x Rectifier & Regulator Assembly (32800-99J00)

Installation Notes

Disconnect the battery cables (negative first, then positive) to prevent electrical shorts.
Locate the existing rectifier/regulator assembly on the engine block. It is typically a metal-finned component with electrical connectors.
Carefully unplug the electrical connectors from the old unit.
Unbolt and remove the old assembly from the engine. Note the orientation and mounting hardware.
Clean the mounting surface to ensure good thermal contact for the new unit.
Mount the new rectifier/regulator assembly using the original hardware.
Securely reconnect the electrical plugs. Ensure they click into place.
Reconnect the battery cables (positive first, then negative).
Start the engine and test the charging system voltage to confirm proper operation (typically 13.8V–14.5V at idle).

Troubleshooting & FAQ

How do I know if my rectifier/regulator is failing?

Common signs of a bad rectifier or regulator include a battery that won't stay charged, dimming or flickering lights, inconsistent gauge readings, or the unit itself becoming excessively hot to the touch. A multimeter test showing voltage outside the 13.5V-14.8V range at the battery while the engine is running is a strong indicator of failure.

Will this fit my specific Suzuki outboard model?

This part replaces Suzuki 32800-99J00. While it fits a range of 4-stroke outboards, specific model and year data is limited. The most reliable way to ensure a fit is to match the part number from your original component to 32800-99J00. Visually compare our product photos with your old part before ordering.

Is this a plug-and-play installation?

Yes, this assembly is designed as a direct, plug-and-play replacement. It features an OEM-style electrical connector and matches the factory mounting points, requiring no modification for installation.

What is the main function of this part?

The rectifier converts alternating current (AC) produced by the stator into direct current (DC). The regulator then controls this DC voltage to a safe, steady level (around 14.4 volts) to properly charge the battery and power the boat's electrical systems without causing damage.

The original part is backordered. Is this a reliable alternative?

Yes. This aftermarket part is engineered to meet or exceed OEM specifications. Limited availability of genuine parts is common, and our components provide a dependable, readily available solution to get you back on the water.

Do I need any special tools for installation?

No special tools are required. Basic hand tools, such as a socket set or wrenches to remove the mounting bolts and a screwdriver if needed, are typically sufficient for the job.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

About Sea Sierra

Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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